diff --git a/assets/package.json b/assets/package.json
index 5b056424f..093a262ed 100644
--- a/assets/package.json
+++ b/assets/package.json
@@ -26,7 +26,7 @@
     "phoenix_html": "file:../deps/phoenix_html",
     "phoenix_live_view": "file:../deps/phoenix_live_view",
     "popper.js": "^1.14.7",
-    "postcss": "8.4.32",
+    "postcss": "8.5.0",
     "query-string": "^6.13.2",
     "quill": "^1.3.7",
     "quill-delta-to-html": "^0.11.0",